Originally Posted by
CPH-Flyer
If the upgrade clears they will let you know either at check-in or at the gate in Haneda.
Thank you. I called JAL yesterday and the agent told me if I didn’t clear at the 24 hour point then it means I wouldn’t clear at all, but then I read some comments here (and Reddit) about airport upgrades, saying it drops from 45,000 to 30,000 day of to TYO-US routes.